code: def setUpClass(cls):
      cls.kwargs = {
          "username": "demo_user",
          "password": "demo_password",
          "host": "172.22.0.4",
          "port": 8983,
          "server_path": "solr",
          "collection": "gettingstarted",
          "use_ssl": False,
      }
      cls.handler = SolrHandler("test_solr_handler", **cls.kwargs)
  
file_path: mindsdb/mindsdb/integrations/handlers/solr_handler/tests/test_solr_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.solr_handler.solr_handler import SolrHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 1 for calling the SolrHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types